250 mL Glass Conical Flasks in Pakistan

250 mL Glass Conical Flasks (250 mL Erlenmeyer Flasks) are essential narrow-neck laboratory vessels engineered for medium-volume liquid mixing, titration, microbial culturing, and heating applications. Manufactured from durable, heat-resistant clear glass, these conical flasks feature a wide flat base and sloped sides that allow vigorous swirling without risk of spillage. Featuring durable white enamel volume graduations and a reinforced rim for stopper fitment, they are indispensable for university chemistry labs, clinical diagnostic centers, industrial testing facilities, and research institutes across Pakistan.

250 mL Glass Conical Flasks – Precision Erlenmeyer Reaction & Titration Flasks

250 mL Glass Conical Flasks provide a versatile, heavy-duty vessel solution for quantitative titrations, reagent preparation, cell culture media boiling, and general liquid handling. The classic Erlenmeyer conical shape minimizes liquid evaporation while allowing smooth, circular mixing without splashing. Designed with uniform wall construction and a balanced flat bottom, these flasks guarantee even heat transfer across hot plates, heating mantles, and water baths. Their narrow neck readily accommodates standard rubber stoppers, corks, or cotton plugs, preserving sample integrity and preventing atmospheric contamination across scientific workflows in Pakistan.

Key Applications:

Quantitative Titrations: Ideal for acid-base and volumetric titrations requiring hand-swirling and precise color endpoint detection.
Reagent & Media Preparation: Suited for dissolving solutes, preparing growth media, and mixing chemical reagents safely.
Thermal Heating & Refluxing: Designed for controlled boiling and heating of medium liquid volumes on laboratory hot plates.

Specifications & Properties:

Product Name: 250 mL Glass Conical Flask / 250 mL Erlenmeyer Flask
Nominal Capacity: 250 mL working volume (with safe capacity up to max graduation)
Material Composition: Heat-resistant laboratory glass
Style/Design: Narrow-neck Erlenmeyer pattern with flat base, conical body, and heavy-duty reinforced rim
Graduation Markings: Permanent white ceramic enamel graduation scale with approximate volume increments (e.g., 50 mL marks)
Thermal Tolerance: Designed for standard laboratory heating, autoclaving, and thermal endurance
Chemical Resistance: Exceptional resistance to mineral acids, alkalis, salts, organic solvents, and biological fluids
Packaging Options: Individual protective wrapping or inner pack boxes of 6, 10, or 12 units
Storage Conditions: Store securely on flat laboratory shelving or drying racks away from mechanical vibration and edge hazards.

Safety & Handling:

Hazard Class: Non-hazardous laboratory glassware prior to use. Thermal burn hazard when heated; laceration hazard if cracked or broken.
Handling & Usage: Inspect for micro-cracks or star fractures prior to heating. Heat uniformly using a wire gauze pad or ceramic hot plate surface. Never clamp neck too tightly to avoid stress fractures.
Disposal: Dispose of broken or chemically contaminated glassware in designated rigid glass waste bins or sharps containers per laboratory biosafety regulations.